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what is the main purpose of line PT and bus PT?

Answers were Sorted based on User's Feedback



what is the main purpose of line PT and bus PT?..

Answer / nageswara rao

line pt means measure incoming line voltage and protect line
under voltage protection 88% of voltage,bus pt means measure
out going bus voltage and protect bus under voltage
protection for motor feeders,44% with time delay 3-5 sec,
pt means the potential transformer, which is used as a
instrument transformer in measuring device. its main use is
to step down the voltage at measurment levels.

Is This Answer Correct ?    115 Yes 15 No

what is the main purpose of line PT and bus PT?..

Answer / logachandran m

We are using Both Line& Bus PT(Potential Transformer) But different application.
1. Line PT- This PT using on main Incomers to Bus bar system or Main out going from Bus system,it will protect the particular feeder system. Ex,Transformer incomers,Generator incomer,etc,....
2. Bus PT- This PT using on Particular Bus bar system, It will protect the Bus Bar. Its will useful for Bus bar to bus bar synchronization or Bus bar to any source(Using with line PT)

Is This Answer Correct ?    39 Yes 8 No

what is the main purpose of line PT and bus PT?..

Answer / v.doraiswamy

Line PT:The Line PT is located on line side of the Feeder.
This will have normally has two secondary cores.The core
with accuracy cl.1 is used for metering purpose(ie)
measuring Voltage,watt,var etc. Core with accuracy cl.3P is
used for Porotection like distance scheme relay,
directional O/C,E/F relay. Also metering secodary core is
used synchronising the line with Bus.

Bus PT : The Bus PT functions are same as Line PT. But This
is located on the main Bus and this can be used for all the
circuits being located in the Bus. For cost point of view
it better to have common Bus pt for all the circuits.

Is This Answer Correct ?    13 Yes 4 No

what is the main purpose of line PT and bus PT?..

Answer / k.prakashchandra

In SS bus PT is used for metering and protection.For line
generally CVT is employed for PLCC and "live line" indication

Is This Answer Correct ?    9 Yes 7 No

what is the main purpose of line PT and bus PT?..

Answer / pardeep bathinda

1 Bus pt use for under / over voltage protection and measure for volt and synchronization time use for voltage matching
2 line pt use for income line voltage and protection line under and over voltage

Is This Answer Correct ?    3 Yes 1 No

what is the main purpose of line PT and bus PT?..

Answer / satale kiran

pt means the potential transformer, which is used as a
instrument transformer in measuring device. its main use is
to step down the voltage at measurment levels.

Is This Answer Correct ?    34 Yes 34 No

what is the main purpose of line PT and bus PT?..

Answer / ramji

Line PT has metering and Protection Cores. Its main use is
to mointor the Line Voltage parameters and is widely used
in protecting Lines in case of Faults occuring due to Phase
to phase faults and phase to earth faults which comes under
its review.

sometimes it has a core for meeting synch with respect
others incase the line breaker opens

Bus pt has metering core and protection core for BUS BAR
protn which mointors the faults in all the buses with
respect to that in a particular substation only

Is This Answer Correct ?    7 Yes 11 No

what is the main purpose of line PT and bus PT?..

Answer / vels

the sensitivity of voltage drop of line PT during the line
fault condition is high than a bus PT

vels

Is This Answer Correct ?    10 Yes 17 No

what is the main purpose of line PT and bus PT?..

Answer / mrudang

pt is use for metering and protection purpose
line PT is a government line
and bus pt is customer pt
we have to synchronise that both
generally pt protect the line with undervoltage ,
overvolateg protection

Is This Answer Correct ?    5 Yes 30 No

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